time-smoother.h

#ifndef foopulsetimesmootherhfoo#define foopulsetimesmootherhfoo/*** This file is part of PulseAudio. Copyright 2007 Lennart Poettering PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.***/#include <pulsecore/macro.h>#include <pulse/sample.h>typedefstruct pa_smoother pa_smoother;
pa_smoother* pa_smoother_new(
pa_usec_t x_adjust_time,
pa_usec_t x_history_time,
pa_bool_t monotonic,
pa_bool_t smoothing,
unsigned min_history,
pa_usec_t x_offset,
pa_bool_t paused);
void pa_smoother_free(pa_smoother* s);
/* Adds a new value to our dataset. x = local/system time, y = remote time */void pa_smoother_put(pa_smoother *s, pa_usec_t x, pa_usec_t y);
/* Returns an interpolated value based on the dataset. x = local/system time, return value = remote time */pa_usec_t pa_smoother_get(pa_smoother *s, pa_usec_t x);
/* Translates a time span from the remote time domain to the local one. x = local/system time when to estimate, y_delay = remote time span */pa_usec_t pa_smoother_translate(pa_smoother *s, pa_usec_t x, pa_usec_t y_delay);
void pa_smoother_set_time_offset(pa_smoother *s, pa_usec_t x_offset);
void pa_smoother_pause(pa_smoother *s, pa_usec_t x);
void pa_smoother_resume(pa_smoother *s, pa_usec_t x, pa_bool_t abrupt);
void pa_smoother_reset(pa_smoother *s, pa_usec_t time_offset, pa_bool_t paused);
void pa_smoother_fix_now(pa_smoother *s);
#endif